Purpose of disconnect switch
- Disconnect switches establish isolation points to enable equipment maintenance. They are installed on both sides of the circuit breaker, high-side of the transformer, and on the line exit.
- Switches cannot and should not be used to interrupt load current or fault current. A switch operation takes place after the circuit is de-energized.
Cost of disconnect switch
A switch can be designed in numerous ways – vertical break, center break, side break, double side break, pantograph,
- 365kV 3000A motor operated disconnect switch: ~$50,000
- 138kV 2000A motor operated disconnect switch: ~$20,000
Lead time to procure disconnect switch
~22 weeks for a high voltage switch.
Information on cost and lead time is for your general knowledge only. Contact vendor with your equipment specifications for actual figures.